1 . 已知函数
,对任意
,恒有
.则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471fe2c809edafac1609cea423478da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18606a470864f8acf1295fceed3ac580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 在平面直角坐标系内,将适合
,且使关于t的方程
没有实数根的点
所成的集合记为N,则由点集N所成区域的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf6d5f2c5b13dd79c284c0147448838a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059917386de69ecd84701d01972c940a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
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名校
3 . 对于实数
,设
表示不小于
的最小整数,则不等式
的解集是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/898a6c355155c992f5e44bb86684225a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c91f74f492ca957fc7a62da95b041f8.png)
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4 . 规定:对任意
,当且仅当
时,
,则
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/312448387f14f5cd6c897c43f6cc63ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c1fd03397ef2e5a4e789174ba13cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/614c5f4fa726ae096342f99635d5b5a3.png)
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2019-01-28更新
|
320次组卷
|
2卷引用:2018年全国高中数学联赛河北省预赛 高二试题
5 . 设n是正整数,且满足
,则n=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf15e2c56856f1995674e209ed434120.png)
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6 . 若对任意的
,均有
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0281bb7cc4443b78173da957b2cc0218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a2eebf8e9226fcdca0ae048c558686.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7 . 函数
.则
的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a8ad27353365858ac083d8001751834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b52e3be868505cf3934322b213559bf.png)
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8 . 已知
为常数,且实数
、
、
满足当
时,
.则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/112ea205bd42fca9a15e40dda41eac24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed87988224a2ed4e924cff3be0c4df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 设
,且
,
为关于
的不等式
的解集.已知
.当
取最大可能值时,
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c198a053f257b5299c954a508c6f42ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3798d6c2e5eac9c1d8b044efd5081acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ff5c440f23fed9cd79b86375ce349c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f8f441c9cbf669989e1faaf3a34d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f0281e6bbdbe08beeccb55adf84536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb56c07c1d5f314cabf477ce3f12858.png)
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10 . 实数
,且
,
.则
的值等于______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af4e70747c6afd0098ff81ffc64c90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db12439d2312f3b2d585292f159fe241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111435e5819312b86aed61924062b5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d8f8fd81494f43ff1c1050e2816fde3.png)
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